generator

Documentation

Overview

Package generator defines GeneratorInterface interface and implements some random value generators.

Index

• Constants
• type ExpressionValueGenerator
  • func NewExpressionValueGenerator(seed *rand.Rand) ExpressionValueGenerator
  • func (g ExpressionValueGenerator) GenerateValue(expression string) (interface{}, error)
• type Generator

Constants

const (
	Alphabet = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
	Numerals = "0123456789"
	Symbols  = "~!@#$%^&*()-_+={}[]\\|<,>.?/\"';:`"
	ASCII    = Alphabet + Numerals + Symbols
)

Types

type ExpressionValueGenerator

type ExpressionValueGenerator struct {
	// contains filtered or unexported fields
}

ExpressionValueGenerator implements Generator interface. It generates random string based on the input expression. The input expression is a string, which may contain "[a-zA-Z0-9]{length}" constructs, defining range and length of the result random characters.

Examples:

from | value ----------------------------- "test[0-9]{1}x" | "test7x" "[0-1]{8}" | "01001100" "0x[A-F0-9]{4}" | "0xB3AF" "[a-zA-Z0-9]{8}" | "hW4yQU5i"

TODO: Support more regexp constructs.

func NewExpressionValueGenerator

func NewExpressionValueGenerator(seed *rand.Rand) ExpressionValueGenerator

NewExpressionValueGenerator creates new ExpressionValueGenerator.

func (ExpressionValueGenerator) GenerateValue

func (g ExpressionValueGenerator) GenerateValue(expression string) (interface{}, error)

GenerateValue generates random string based on the input expression. The input expression is a pseudo-regex formatted string. See ExpressionValueGenerator for more details.

type Generator

type Generator interface {
	GenerateValue(expression string) (interface{}, error)
}

Generator is an interface for generating random values from an input expression